I believe I am the fine angler riverrat referred to. lol
The articles apply to "great ponds" I dont know what pond in Sharon you're talking about but I dont think its a great pond.
some good info here .......
http://www.mass.gov/dep/water/resources/about01.htm
http://www.mass.gov/dep/water/resources/grtpond.htm
It is if it is over 10 acres in it's natural state, meaning before dams, dredging etc
To be honest you will find it very rare that someone actually owns any pond unless it is on their land, not just bordering their land. For instance if I own a parcel of land that has a 2 acre pond on it then it is my pond..if I own a parcel of land that has shoreline on a lake but does not encompass the lake it isn't my lake..and of course as shown above if it is over 10 acres naturally then I cannot own it.
Also just because a lake is surrounded by private property does not mean I cannot legally cross said property to access a lake if no other "public" access is provided...I can not trespass or hang out or nuisance the property but cutting across to launch a canoe would be legal if not public access was given and the lake is over 10 acres in its natural state. The land all around a lake can be owned but, the public owns fishing and fowling rights to the lake.
That being said if it is over 10 acres a 10 person petition is all that is required to start the workings to add public access according to section 18a of chapter 91...
Upon petition of ten citizens of the commonwealth that in their opinion public necessity requires a right of way for public access to any great pond within the commonwealth, the department and the attorney general or a representative designated by him sitting jointly shall hold a public hearing and receive such evidence thereon as may be presented to them. The joint board may make such additional investigation as it deems desirable and if it appears to said board that such a right of way exists it shall present a petition to the land court for registration of the easement. If it appears that no right of way exists it shall submit a report, together with recommendations thereon, to the general court on or before January first of the following year. This section shall not apply to any body of water used as a source of water supply by the commonwealth or by any town or district, or water company, nor shall it affect the right of the commonwealth or any town or district or water company to the use and control of the waters of any such pond for the purposes of a water supply, nor shall it affect or diminish any existing right to the use of the water of any such pond for mercantile or manufacturing purposes.
I'd sign it if it is indeed of the right size...